A rhizomatic plant with a
stiff, much branched stem, growing up to 4 ft. tall. Flowers in
summer on short peduncles. The inflorescence is produced below the leaf
canopy well screened by the leaves. Flowers variable in colour and we have
the deep purple/violet variety.

Grows well in rich humus based
compost.

Habitat: Eastern
Himalayas. Found growing in permanently moist places among shrubs and
grasses.